2006 GMC Sierra 2500 Problems
Owner-reported complaints filed with NHTSA, grouped by component
Data refreshed
What this page shows
Everything below is an owner-reported complaint submitted to NHTSA about the 2006 GMC Sierra 2500, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Reports by component
Ranked by how many owner reports name each component category
- Brakes3038.0%
- Transmission1012.7%
- Steering1012.7%
- Tires & wheels67.6%
- Engine56.3%
- Electrical45.1%
- Airbags33.8%
- Other / unspecified22.5%
- Fuel system22.5%
- Powertrain (other)22.5%
- Suspension22.5%
- Interior & seats11.3%
- Body & structure11.3%
- Visibility11.3%
Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.
Each component in detail
What the reports in each category say, in the owners' own words
Brakes
Reports naming service brakes, the antilock braking system, brake hoses, master cylinders or the parking brake.
From owner reports, verbatim
BRAKES FAILED "COMPLETELY", WITH NO WARNING. NO "WARNING LIGHT" ON THE INSTRUMENT PANEL WHILE DRIVING ON A PUBLIC ROAD IN THE COUNTY. ALL OF A SUDDEN ABSOLUTELY NO BRAKES. HAD RECENTLY HAULED A CAR ON A TRAILER FROM EMPORIA, KANSAS. WAS PREPARING TO HAUL CALVES TO THE SALE BARN. NOW THAT WOULD HAVE BEEN A TOTAL DISASTER. UPON INSPECTION, THE BRAKE LINES ARE SO RUSTED, THAT PINCHING OFF THE LINE RESULTED IN A RUPTURE IN ANOTHER LOCATION. I WAS TRYING TO GET SOME BRAKING ACTION, SO I COULD DRIVE IT TO A REPAIR SHOP. I'LL HAVE TO HAUL IT. *TR
BRAKE LINES BUSTED. THIS IS A VERY SERIOUS PROBLEM BECAUSE I WAS HAULING A LOAD AND GOT EXTREMELY EXTREMELY LUCKY THAT IT BUSTED AS I WAS PULLING IN DRIVEWAY. I WAS PULLING A LOADED TRAILER WITH NO BRAKES. THIS IS A VERY COMMON ISSUE WITH THE 2005 AND 2006 2500 TRUCKS. I CAN NAME 6 VEHICLES I KNOW OF IN THE PAST 6 MONTHS THAT THIS HAS HAPPENED TOO. MECHANIC SAYS IT'S A VERY SERIOUS AND COMMON ISSUE THAT GM SHOULD BE RECALLING. IF I WOULD HAVE BEEN AT A STOPLIGHT IT WOULD HAVE BEEN BAD. CHEAP MATERIALS IS THE PROBLEM WITH THESE BRAKE LINES. 2006 YEAR MODEL IS MINE.
Transmission
Reports naming the automatic or manual transmission, including shifting behaviour, shudder, slipping and transmission control modules.
From owner reports, verbatim
2006 GMC DIESEL WITH ALLISON TRANSMISSION...LINES TO TRANSMISSION COOLER LEAKING. IT IS A FIRE HAZARD...FROM WHAT I READ ON THE INTERNET IT HAS BEEN A PROBLEM WITH ALL THE TRANSMISSION LINES INSTALLED ON THIS TRUCK
I HAVE A 2006 GMC SIERRA 2500 WITH THE LBZ DURAMAX AND ALLISON TRANSMISSION. TWO OF THE TRANSMISSION COOLANT LINES BEGAN LEAKING TRANSMISSION FLUID AT THE CRIMP ENDS IN MARCH OF 2009. THE TRUCK ONLY HAD 32,000 MILES, BUT WAS 3 MONTHS BEYOND THE 36 MONTH WARRANTY PERIOD. SERVICE UNDER WARRANTY WAS DENIED. AN ON-LINE SEARCH REVEALS SEVERAL OTHERS HAVE COMPLAINED ABOUT THIS ISSUE AND THAT THE DEALER INSTALLED OEM REPLACEMENT LINES ARE NO BETTER (DEVELOPING LEAKS SOON AFTER REPLACEMENT), YET NO TSB OR CORRECTIVE ACTION HAS BEEN ISSUED BY GM. LEAKING TRANSMISSION FLUID IS A FIRE AND ENVIRONMENTAL HAZARD. THE LEAKS ARE GETTING WORSE. *TR
Steering
Reports naming the steering system — racks, columns, power-steering assist and steering linkage.
From owner reports, verbatim
MY VEHICLE WAS TOTALED AND I SEE THEIR IS A RECALL FOR THE PITMAN ARM THAT CAN CAUSE TOTAL LOSS IF STEERING AND THAT IS WHAT HAPPENED TO ME
I WAS BACKING OUT OF MY DRIVEWAY (DOWN HILL SLOPE) AND LOST POWER STEERING AND BRAKING IN MY 2006 GMC 2500HD DIESEL TRUCK. I PUT THE TRANSMISSION IN NEUTRAL AND DEPLOYED THE EMERGENCY BRAKE TO STOP. THE MECHANIC DETERMINED THE POWER STEERING PUMP HAD FAILED AND THIS RESULTED IN THE HYDRO BOOST FAILURE WITH SUBSEQUENT BRAKE LOSS. AFTER REPLACING THE POWER STEERING PUMP THE POWER STEERING LINES SPLIT TWO WEEKS LATER. *TR
Tires & wheels
Reports naming tires, wheels, hubs, or the tire-pressure monitoring system.
From owner reports, verbatim
TL* THE CONTACT OWNS A 2006 GMC 2500 EQUIPPED WITH BF GOODRICH MUDD KM2 TIRES, SIZE 35 12.5 R18. THE CONTACT STATED THAT THE REAR PASSENGER SIDE TIRE BLEW OUT AND DAMAGED THE REAR SQUARE PANEL AND WHEEL WELL OF THE TIRE. THE CONTACT STATED THAT THEY WERE ABLE TO PREVENT THAT THE FRONT DRIVER SIDE TIRE BLEW OUT. THE TIRES HAD PLENTY OF TREAD AND THE TIME OF THE BLOW OUT. THE CURRENT MILEAGE WAS 93,000.
FIRESTONE DESTINATION A/T LT285/75R16 TIRES - CATASTROPHIC FAILURE OF TIRE WHILE TRAVELING AT 60 MPH IN MIDDLE LANE OF THREE LANE HWY. NO PUNCTURE. SIDE WALL BLEW OUT . TIRES HAD ONLY 15,000 MILES. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Engine
Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.
From owner reports, verbatim
I HAVE A 2006 GMC SIERRA 2500 HD WITH 32000 MILES. I HAVE HAD TO REPLACE THE BRAKES AND ROTORS TWICE BECAUSE THEY HAVE RUSTED AND ROTTED AWAY. I HAVE HAD TO REPLACE MY EXHAUST BECAUSE OF RUST AND THE ENTIRE UNDER CARRIAGE AND FRAME ARE HEAVILY RUSTED. I HAVE JUST RECENTLY NOTICED THAT THERE IS EVEN RUST INSIDE THE CAB, INTERIOR DOORS, CHROME IS BUBBLING. *TR
TL* THE CONTACT OWNS A 2006 GMC SIERRA 2500 HD. THE CONTACT WAS DRIVING APPROXIMATELY 50 MPH AND SMELLED BURNING COOLANT AND THE TEMPERATURE GAUGE BEGAN TO RAPIDLY INCREASE. THE CONTACT INSPECTED UNDER THE HOOD AND NOTICED THE ENGINE OVERHEATING WITH COMPLETE LOSS OF COOLANT. IMMEDIATELY, WATER WAS DISPENSED INTO THE RADIATOR RESERVOIR. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER TWO DIFFERENT TIMES FOR THE SAME FAILURE. THE WATER PUMP WAS REPLACED TWICE. THE MANUFACTURER WAS NOTIFIED AND A COMPLAINT WAS FILED. THE APPROXIMATE FAILURE MILEAGE WAS 22,000.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Electrical
Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.
From owner reports, verbatim
YOU CAN TAKE THE KEY OUT OF THE IGNITION WITH THE MOTOR RUNNING. TO START ENGINE YOU NEED TO 'WIGGLE' THE KEY OR TAKE IT OUT AND RE-INSERT ABOUT 50% OF THE TIME. PLEASE NOTE; BECAUSE OF THE PAST "WE DON'T CARE" ATTITUDE OF GM ON OTHER COMPLAINTS- I PERSONALLY DON'T WANT THEM TO CONTACT ME- I'M JUST LETTING YOU KNOW OF THIS IN CASE OF OTHERS THAT HAVE PROBLEMS. *TR
WAS DRIVING HOME FROM WORK. SMELLED SOMETHING HOT, THEN SMOKE CAME OUT VENTS, WITHIN LESS THAN A MINUTE FLAMES WERE COMING OUT FROM UNDER PASSENGER'S SIDE DASH. HAD TO PULL OVER AND PUT OUT FIRE WITH FIRE EXTINGUISHER. IF THERE HAD BEEN A PASSENGER LIKE MY CHILDREN THEY WOULD HAVE BEEN SEVERELY BURNED OR KILLED.I AM A GM TECHNICIAN AND THE FUSE FOR THE HVAC DID NOT BLOW AND TAKING AWAY POWER DID NOT STOP THE ISSUE. I KNOW THAT THERE ARE ISSUES WITH THE RESISTOR WIRING. MY VEHICLE SYSTEMS ALL WORKED FINE BEFORE THE INCIDENT AND GAVE NO INDICATIONS OF FAILING. THIS INCIDENT HAPPENED FAST ENOUGH THAT THE VEHICLE WOULD HAVE BEEN TOTALLY IN FLAMES IF A FIRE EXTINGUISHER WAS NOT RIGHT HANDY. YOU ARE AWARE OF THIS ISSUE WHY IS NOTHING BEING DONE ABOUT IT. GM IS VERY LUCKY THAT I DID NOT HAVE A PASSENGER TONIGHT. *JS
Too few reports in this category for a page of its own — they appear in the full complaint list.
Airbags
Reports naming the air-bag system — deployment behaviour, inflators, sensors and warning lights.
From owner reports, verbatim
SERVICE AIR BAG LIGHT IS ON
TL* THE CONTACT OWNED A 2006 GMC SIERRA 2500. WHILE DRIVING 65 MPH, THE CONTACT'S VEHICLE CRASHED INTO A GUARDRAIL. THE AIR BAGS DID NOT DEPLOY. A POLICE REPORT WAS FILED. THE CONTACT SUSTAINED INJURIES TO THE LEFT KNEE, LEFT ANKLE, LEFT HIP, AND ABDOMEN. MEDICAL ATTENTION WAS REQUIRED. THE VEHICLE WAS DESTROYED AND TOWED. THE MANUFACTURER WAS NOT NOTIFIED. THE FAILURE MILEAGE WAS 103,000.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Other / unspecified
Reports whose component NHTSA recorded as unknown, or that do not map to one of the categories above.
From owner reports, verbatim
NEW LOOKING SNOW TIRE, TREAD SEPARATED FROM TIRE. APPROX. 62 MPH DOING DAMAGE TO TRUCK WHEEL WELL. TIRE DID NOT GO FLAT. CHECK OTHER THREE MATCHING TIRES , ALL LOOKED OK. CONTINUED ON TRIP, PARKED FOR THE NIGHT. APPROX. 70 MORE MILES INTO TRIP OTHER REAR TIRE SEPARATED AND WENT FLAT, CAUSING DAMAGE TO OTHER SIDE OF PICKUP WHEEL WELL. CALLED AAA TOW TO TIRE STORE FOR A NEW SET OF FOUR. PICKUP IS AN GMC 2500 HD, 2006. BETWEEN THE TWO SEPARATIONS APPROX. 6500.00 DOLLARS DAMAGE. *TR
DT*: THE CONTACT STATED THE REAR PASSENGER WHEEL VALVE SYSTEM BLISTERED CAUSING AN AIR LEAK. THE CONTACT CHANGED THE TIRE AND THE PROBLEM RECURRED. THE VEHICLE LOST CONTROL AND WAS IN A SINGLE CAR ACCIDENT CAUSING DAMAGE TO THE VEHICLE. NO INJURIES WERE SUSTAINED.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Fuel system
Reports naming fuel storage or delivery — tanks, pumps, lines, injectors and fuel leaks.
From owner reports, verbatim
ARRIVING AT MY RV SITE IN ALABAMA FROM UPPER MICHIGAN A NEIGHBOR SAW SOMETHING LEAKING FROM NEAR THE LEFT FRONT TIRE OF MY PICKUP. UPON DETERMINING IT WAS DIESEL I IMMEDIATELY DROVE TO THE LOCAL CHEVY DEALER. THEY SAID DUE TO THE CONDITION OF THE LINES THEY ALL BE REPLACED. NEXT DAY I WAS ASKED TO COME TO THE GARAGE TO LOOK AT THE BRAKE LINES AS THEY COULD NOT MOVE ANY TO GET PROPER ROUTING OF THE FUEL LINES.THE LINES ATTACHING TO THE ABS MODULATOR, TOTAL OF 6, LOOKED LIKE YOU COULD CRUMBLE THEM WITH YOUR HAND SO ALL WERE REPLACED AS WELL. I PULL A 33 FOOT FIFTH WHEEL AND CONSIDER WE WERE EXTREMELY FORTUNATE NOTHING HAPPENED ON THE ROAD. *TR
UNDER NORMAL DRIVING CONDITIONS WITHOUT CAUSE THE FUEL FILTER WATER-IN-GAS SENSOR BLEED VALVE LEAKS FUEL. THIS CAUSES FUEL TO LEAK INTO THE ENGINE COMPARTMENT. SYMPTOMS INCLUDE FUEL ON THE GROUND, FUEL ODOR, HARD/LONGER ENGINE CRANKING. THERE ARE OTHER REPORTS OF THIS PROBLEM AT : HTTP://WWW.DIESELPLACE.COM/FORUM/SHOWTHREAD.PHP?P=3452490 ALSO HTTP://WWW.GOOGLE.COM/SEARCH?HL=EN&RLS=COM.MICROSOFT:*&Q=DURAMAX+FUEL+FILTER+LEAKING+WATER+SENSOR&START=10&SA=N. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Powertrain (other)
Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials.
From owner reports, verbatim
THE TRANSMISSION BEGAN TO SLIP. AT TIMES, I HAD TO STOP THE TRUCK AND PUT IN PARK BEFORE IT WOULD ENGAGE IN DRIVE. FINALLY IT LOST ALL BUT 1ST GEAR. TOOK TO DEALER AND TORQUE CONVERTER HAD TO BE REPLACED. GMC MADE ME PAY HALF THE $3200 REPAIR. I DO NOT LIVE IN A COLD CLIMATE. A HEAVY DUTY TRUCK SHOULD NOT BE LOSING THE TRANSMISSION AT LESS THAN 50,000 MILES!
I HAVE A 2006 GMC SIERRA 2500 WITH THE LBZ DURAMAX AND ALLISON TRANSMISSION. TWO OF THE TRANSMISSION COOLANT LINES BEGAN LEAKING TRANSMISSION FLUID AT THE CRIMP ENDS IN DEC OF 2010. THE TRUCK ONLY HAD 30,000 MILES, BUT WAS THE 36 MONTH WARRANTY PERIOD. SERVICE UNDER WARRANTY WAS DENIED. AN ON-LINE SEARCH REVEALS SEVERAL OTHERS HAVE COMPLAINED ABOUT THIS ISSUE AND THAT THE DEALER INSTALLED OEM REPLACEMENT LINES ARE NO BETTER (DEVELOPING LEAKS SOON AFTER REPLACEMENT), YET NO TSB OR CORRECTIVE ACTION HAS BEEN ISSUED BY GM. LEAKING TRANSMISSION FLUID IS A FIRE AND ENVIRONMENTAL HAZARD. THE LEAKS ARE GETTING WORSE. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Suspension
Reports naming suspension components — springs, struts, shocks, control arms and related hardware.
From owner reports, verbatim
TL* THE CONTACT OWNS A 2006 GMC SIERRA 2500. WHILE DRIVING APPROXIMATELY 65 MPH, THE CONTACT HEARD A POPPING SOUND WHILE TURNING THE STEERING WHEEL. IN ADDITION, THERE WAS AN ABNORMAL GRINDING SOUND WHILE THE VEHICLE WAS IN MOTION. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE THE FRONT DRIVER SIDE HUB WAS REPLACED. THE VIN WAS NOT AVAILABLE. THE APPROXIMATE FAILURE MILEAGE WAS 83,000.
I ATTEMPTED TO PREVIOUSLY MAKE SEVERAL REPAIRS TO THE VEHICLE. THE FIRST OF THE PROBLEMS OCCURRED WHEN DRIVING. THE SUSPENSION MADE LOUD GRINDING NOISES AND AFTER 3 ATTEMPTS MADE IT WAS REPAIRED. NOW THE PROBLEM SEEMS TO HAVE RETURNED AND I AM NOT SURE WHAT I SHOULD DO. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Interior & seats
Reports naming seats, latches, locks, linkages and interior fittings.
From owner reports, verbatim
TL*THE CONTACT OWNS A 2006 GMC 2500 CARGO VAN. WHILE THE VEHICLE WAS PARKED, THE CONTACT WAS UNABLE TO OPEN THE REAR PASSENGER CARGO DOOR. THE HINGE WAS BENT AND MISALIGNED; THE BOTTOM PINS WERE ALSO RUSTED. THE VEHICLE HAD NOT BEEN INSPECTED OR REPAIRED AT THE TIME OF THE COMPLAINT. THE CONTACT CALLED THE MANUFACTURER WHO REFERRED HIM TO THE DEALERSHIP TO HAVE THE VEHICLE REPAIRED AT HIS EXPENSE; THEY STATED THAT THEY WOULD DECIDE IF THEY WOULD ASSIST IN THE EXPENSES. THE FAILURE MILEAGE WAS APPROXIMATELY 40,000. THE CURRENT MILEAGE WAS APPROXIMATELY 43,000.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Body & structure
Reports naming the vehicle structure, frame, body panels, doors, hood and trim.
From owner reports, verbatim
I HAVE A 2006 GMC SIERRA 2500 HD WITH 32000 MILES. I HAVE HAD TO REPLACE THE BRAKES AND ROTORS TWICE BECAUSE THEY HAVE RUSTED AND ROTTED AWAY. I HAVE HAD TO REPLACE MY EXHAUST BECAUSE OF RUST AND THE ENTIRE UNDER CARRIAGE AND FRAME ARE HEAVILY RUSTED. I HAVE JUST RECENTLY NOTICED THAT THERE IS EVEN RUST INSIDE THE CAB, INTERIOR DOORS, CHROME IS BUBBLING. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Visibility
Reports naming windshields, glass, wipers, defrosters and mirrors.
From owner reports, verbatim
NOT ONLY DOES THE RIGHT SIDE MIRROR HAVE THE OBJECTS ARE CLOSER THAN IT APPEARS STYLE MIRROR USED FOR CARS MAKING IT IMPOSSIBLE TO USE FOR TOWING ( ON A TRUCK WITH A TOW PACKAGE ) IT HAS RED LIGHTS THAT FLASH IN THE MIRROR. NOT ONLY DOES THE FLASHING RED LIGHTS MAKE IT HARD TO SEE ANYTHING IN THE MIRROR AT NIGHT, IT MAKES IT ALMOST IMPOSSIBLE TO USE IT IN THE RAIN AT NIGHT, AS IT MAKES THE WATER DROPS ON THE WINDOW FLASH RED AS WELL . IT IS A SAFETY HAZARD THAT COULD ALSO BE A PROBLEM FOR SOMEONE WITH PHOTOSENSITIVE EPILEPSY (PSE) IS A FORM OF EPILEPSY IN WHICH SEIZURES ARE TRIGGERED BY VISUAL STIMULI THAT FORM PATTERNS IN TIME OR SPACE, SUCH AS FLASHING LIGHTS; BOLD, REGULAR PATTERNS; OR REGULAR MOVING PATTERNS.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Elsewhere on this vehicle
Data sources
- NHTSA Office of Defects Investigation — owner-reported complaints and the components recorded on them
Data on this page last refreshed .